| Table of Contents |
|---|
...
- For complex ICs, do NOT match IC pinouts to their physical layout. Instead, put power pins on top, ground on the bottom, inputs on the left and outputs on the right. See here for reasoning.
Component naming (symbol reference) will follow this convention:
Code Block language bash firstline 1 [TYPE OF COMPONENT] [DESCRIPTIONS AND FEATURES] [PACKAGE (where applicable)]
Common types of components:
Code Block language bash firstline 1 IC, CAP, RES, EVAL, CONN, LED, IND, MOSFET, POT, DIODE, CRYSTAL, XFMR
Sample Descriptions:
Code Block language bash firstline 1 REG BUCK 5V 0.3A, OPTOISOLATOR 5KV, ADC 24BIT
Sample Packages:
Code Block language bash firstline 1 10DFN, SOT23-5, 0603, 8-SOIC, 5-SSOP
Complete Example:
Code Block language bash firstline 1 IC REG BUCK 5V 0.3A 8-TDFN
- Add Component Parameters using the Supplier Search feature (Libraries and Component Creation - Using Supplier Search to add Component Parameters in Bulk)
- Set important parameters to visible so they can be viewed in the schematic:
- Capacitors (Capacitance, Voltage, Temperature Coefficient)
- Resistors (Resistance, Power, Tolerance)
- Inductors (Inductance)
- Connectors (Pitch)
- Crystals (Frequency)
- Diodes (Voltage, Current (for Schottky Diodes), Power (For TVS Diodes))
- LEDs (Forward Voltage, Colour)
- Complex ICs (Manufacturer Part Number)
- Other (Relevant maximum ratings as necessary)
- Align all pins to a 10mil snap grid (Basic Concepts - Grids).
- Use pin length of 20mil.
...
- Wire-to-board signals will use 2.0mm pitch Duraclik ISL connectors (DuraClik Connector System).
- Wire-to-board power will use 3.5mm pitch Ultra-Fit connectors (Ultra-Fit Connector System).
- Panelmount connectors will use a sealed, locking connector. We are currently assessing Deustche connectors.
- HV power will use Anderson SB120s.
...